Complete dislocations of the knee with popliteal vascular injury.

Complete dislocation of the knee is rare, but is frequently associated with popliteal artery disruption. Prompt recognition and early revascularization are paramount for a successful and functional result. Arteriography is recommended in all cases of complete dislocation of the knee. Excision of the damaged arterial segment with saphenous vein bypass grafting is the treatment of choice. Associated venous and nerve injuries should be recognized and repaired early. Liberal use of compartment decompression procedures give better long-term results.